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Toshiba RAV-HM561KRTP Series Service Manual
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Toshiba RAV-HM561KRTP Series Service Manual

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FILE NO. SVM-22026-2
SERVICE MANUAL
AIR-CONDITIONER
SPLIT TYPE
INDOOR UNIT
High Wall Type
RAV-HM561KRTP Series
RAV-HM801KRTP Series
RAV-HM901KRTP Series
R32
Revised on Jul, 2022

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Summary of Contents for Toshiba RAV-HM561KRTP Series

  • Page 1 FILE NO. SVM-22026-2 SERVICE MANUAL AIR-CONDITIONER SPLIT TYPE INDOOR UNIT High Wall Type RAV-HM561KRTP Series RAV-HM801KRTP Series RAV-HM901KRTP Series Revised on Jul, 2022...

  • Page 2: Table Of Contents

    Adoption of New Refrigerant This Air Conditioner is a new type which adopts a new refrigerant R32 instead of the conventional refrigerant R22 in order to prevent destruction of the ozone layer. CONTENTS PRECAUTIONS FOR SAFETY ................ 1. SPECIFICATIONS ..................2.
  • Page 3 Toshiba Carrier Corporation or, alternatively, he or she has been instructed in such matters by an individual or individuals who have been trained and is thus thoroughly acquainted with the knowledge related to this work.
  • Page 4 Definition of Protective Gear When the air conditioner is to be transported, installed, maintained, repaired or removed, wear protective gloves and ‘safety’ work clothing. In addition to such normal protective gear, wear the protective gear described below when undertaking the special work detailed in the table below.
  • Page 5 Warning Indications on the Air Conditioner Unit [Confirmation of warning label on the main unit] Confirm that labels are indicated on the specified positions If removing the label during parts replace, stick it as the original. Warning indication Description WARNING WARNING ELECTRICAL SHOCK HAZARD ELECTRICAL SHOCK HAZARD...

  • Page 6: Precautions For Safety

    Precautions for safety The manufacturer shall not assume any liability for the damage caused by not observing the description of this manual. DANGER Before carrying out the installation, maintenance, repair or removal work, be sure to set the circuit breaker for both the indoor and outdoor units to the OFF position.
  • Page 7 WARNING Before starting to repair the air conditioner, read carefully through the Service Manual, and repair the air conditioner by following its instructions. Only qualified service person (*1) is allowed to repair the air conditioner. Repair of the air conditioner by unqualified person may give rise to a fire, electric shocks, injury, water leaks and/or other problems.
  • Page 8 Before troubleshooting or repair work, check the earth wire is connected to the earth terminals of the main unit, otherwise an electric shock is caused when a leak occurs.If the earth wire is not correctly connected, contact an electric engineer for rework. After completing the repair or relocation work, check that the ground wires are connected properly.
  • Page 9 After repair work, surely assemble the disassembled parts, and connect and lead the removed wires as before. Perform the work so that the cabinet or panel does not catch the inner wires. If incorrect assembly or incorrect wire connection was done, a disaster such as a leak or fire is caused at user’s Assembly / side.
  • Page 10 When the service panel of the outdoor unit is to be opened in order for the compressor or the area around this part to be repaired immediately after the air conditioner has been shut down, set the circuit breaker to the OFF position, and then wait at least 10 minutes before opening the service panel.
  • Page 11 Declaration of Conformity Manufacturer: Toshiba Carrier (Thailand) Co., Ltd. 144/9 Moo 5, Bangkadi Industrial Park, Tivanon road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand TCF holder: TOSHIBA CARRIER EUROPE S.A.S Route de Thil 01120 Montluel FRANCE Hereby declares that the machinery described below:...
  • Page 12 Declaration of Conformity Manufacturer: Toshiba Carrier (Thailand) Co., Ltd. 144/9 Moo 5, Bangkadi Industrial Park, Tivanon road, Tambol Bangkadi, Amphur Muang, Pathumthani 12000, Thailand TCF holder: TOSHIBA CARRIER UK LTD. Porsham Close Belliver Industrial Estate Roborough Plymouth Devon PL6 7DB United Kingdom...
  • Page 13 Specifications Sound pressure level (dBA) Model Weight (kg) Cooling Heating RAV-HM561KRTP-E RAV-HM801KRTP-E RAV-HM901KRTP-E RAV-HM561KRTP-TR RAV-HM801KRTP-TR * Under 70 dB - 13 -...

  • Page 14: Specifications

    1. SPECIFICATIONS High-wall type Indoor unit RAV-HM 561KRTP-E(-TR) 801KRTP-E(-TR) 901KRTP-E Model Outdoor unit RAV-GM 561ATP-E(-TR) 562ATP-E(-TR) 801ATP-E(-TR) 901ATP-E(-TR) Cooling Capacity (kW) Heating Capacity (kW) Power Supply 1 phase 230V (220-240V) 50Hz Running current 7.78 - 7.13 7.78 - 7.13 11.43 - 10.48 12.63 - 11.58 Power consumption (kW)

  • Page 15: Construction Views (External Views)

    2. CONSTRUCTION VIEWS (EXTERNAL VIEWS) Indoor Unit 1050 Air Inlet Air Filter Front Panel Grille Inlet Heat Exchanger Air Outlet Knock Out System Knock Out System Wireless remote controller 50 71.5 71.5 Installation plate hanger 17.5 Remote controller holder Drain hose (0.4m) Installation plate hanger Connecting pipe Installation plate hanger...

  • Page 16: Systematic Refrigerating Cycle Diagram

    3. SYSTEMATIC REFRIGERATING CYCLE DIAGRAM High Wall Type • Single type (Combination of 1 indoor unit and 1 outdoor unit) (Indoor unit) Distributor (Strainer incorporated) TCJ sensor Air heat exchanger TC sensor Heating Cooling Refrigerant pipe Refrigerant pipe at liquid side at gas side (Outer dia : ØB) (Outer dia : ØA)

  • Page 17: Wiring Diagram

    4. WIRING DIAGRAM High Wall Type - 17 -...

  • Page 18: Specifications Of Electrical Parts

    5. SPECIFICATIONS OF ELECTRICAL PARTS High Wall Type Parts Name Type Specications Fan motor (for indoor) Output (Rated) 30W, 340V DC ICF-340-30-6 4 phase, DC 12V 24BYJ48A-080 Grille motor 418mm Thermo. Sensor (TA sensor) 10kΩ at 25°C Heat exchanger sensor (TC sensor) Ø6, 800mm 10kΩ...

  • Page 19: Refrigerant R32

    6. REFRIGERANT R32 3. If a refrigeration gas leakage occurs during This air conditioner adopts the new refrigerant HFC (R32) which does not damage the ozone layer. installation/servicing, be sure to ventilate fully. If the refrigerant gas comes into contact with fire, a The next section describes the precautions for air conditioner using the new refrigerant.
  • Page 20 Table 3-2-1 Thicknesses of annealed copper pipes Thickness (mm) Nominal diameter Outer diameter (mm) 6.35 0.80 0.80 9.52 0.80 0.80 12.70 0.80 0.80 15.88 1.00 1.00 2. Joints For copper pipes, flare joints or socket joints are used. Prior to use, be sure to remove all contaminants. a) Flare Joints Flare joints used to connect the copper pipes cannot be used for pipings whose outer diameter exceeds 20 mm.
  • Page 21 d) Flare Processing Make certain that a clamp bar and copper pipe have been cleaned. ØD By means of the clamp bar, perform the flare processing correctly. Use either a flare tool for R32 or conven- tional flare tool. Flare processing dimensions differ according to the type of flare tool.
  • Page 22 Table 3-2-6 Flare and flare nut dimensions for R22 Dimension (mm) Nominal Outer diameter Thickness Flare nut width diameter (mm) (mm) (mm) 6.35 9.52 13.0 13.5 12.70 16.2 16.0 12.9 15.88 19.7 19.0 16.0 19.05 23.3 24.0 19.2 Fig. 3-2-2 Relations between flare nut and flare seal surface 2.

  • Page 23: Tools

    6-3. Tools 6-3-1. Required Tools The service port diameter of packed valve of the outdoor unit in the air-water heat pump using R32 is changed to prevent mixing of other refrigerant. To reinforce the pressure-resisting strength, flare processing dimensions and opposite side dimension of flare nut (For Ø12.7 copper pipe) of the refrigerant piping are lengthened.

  • Page 24: Recharging Of Refrigerant

    6-4. Recharging of Refrigerant When it is necessary to recharge refrigerant, charge the specified amount of new refrigerant according to the following steps. Recover the refrigerant, and check no refrigerant remains in the equipment. When the compound gauge’s pointer has indicated –0.1 Mpa (–76 cmHg), place the handle Low in the fully closed position, and turn off the vacuum pump’s power switch.

  • Page 25: Brazing Of Pipes

    6-5. Brazing of Pipes 6-5-1. Materials for Brazing 3. Types of flux • Noncorrosive flux 1. Silver brazing filler Generally, it is a compound of borax and boric Silver brazing filler is an alloy mainly composed acid. of silver and copper. It is used to join iron, copper It is effective in case where the brazing tem- or copper alloy, and is relatively expensive though perature is higher than 800°C.
  • Page 26 6-5-3. Brazing As brazing work requires sophisticated techniques, experiences based upon a theoretical knowledge, it must be performed by a person qualified. Flow meter In order to prevent the oxide film from occurring in the pipe interior during brazing, it is effective to Stop valve proceed with brazing while letting dry Nitrogen gas (N2) flow.

  • Page 27: Indoor Unit Control

    7. INDOOR UNIT CONTROL 7-1. Indoor Controller block diagram 7-1-1. Connection of wired remote controller Wired (Simple) header remote controller (wired) Central remote controller Display Display LCD Function setup LCD driver Key switch Display LED Function setup Key switch DC5V Remote controller Power circuit DC5V...
  • Page 28 7-1-2. Connection of Wireless Remote Controller Central control remote controller (Sold separately) Follower unit Indoor unit #1 Header unit Indoor control P.C. board (MCC-1696) Central control communication circuit DC20V Remote controller communication circuit DC12V EEPROM Receiver and Display P.C. board DC5V TA sensor (WP-033)

  • Page 29: Control Specifications

    7-2. Control Specifications (High Wall Type) Item Outline of specifications Remarks When power 1) Distinction of outdoor unit supply is reset When the power supply is reset, the outdoors are distin- guished and the control is selected according to the distinguished result.
  • Page 30 Item Outline of specifications Remarks Room temp. 2) Using the CODE No. 06, the setup temperature in heating Shift of suction control operation can be corrected. temperature in heating (Continued) operation SET DATA Setup temp. 3°C 4°C 5°C 0°C 1°C 2°C correction Setting at shipment...
  • Page 31 Item Outline of specifications Remarks Fan speed control 1) Operation with (HH), (H), (L) or [AUTO] mode is carried HH > H+ > H > L+ > L > out by the command from the remote controller. 2) When the fan speed mode [AUTO] is selected, the fan speed varies by the difference between Ta and Ts.
  • Page 32 Item Outline of specifications Remarks Fan speed control Fan speed [rpm] (Continued) HM561 HM801 HM901 COOL HEAT 1020 1080 1180 1020 1080 1180 1020 1020 “PRE-HEAT ” 3) When thermo sensor turns OFF during heating, the fan indication speed mode becomes UL ( weak). 4) When Ta is 25°C or above at the beginning of HEAT operation or when canceling defrost mode, H or HH mode continues for 1 minute from the time when Tc enters zone...
  • Page 33 Item Outline of specifications Remarks Freeze preventive control 1) The cooling operation (including Dry operation) is Tcj: (Low temperature release) performed as follows based on the detected Indoor heat exchanger temperature of Tc sensor or Tcj sensor. sensor temperature When [J] zone is detected for 6 minutes (Following figure), the commanded frequency is decreased from the real operation frequency.
  • Page 34 Item Outline of specifications Remarks After-heat When heating operation stops, in some cases, the indoor fan elimination operates with (L) for approx. 30 seconds. Louver 1) During the first operation after power on, louver position is Louver angle: 0° control controlled automatically according to operation mode ( full close ) (COOL/HEAT).
  • Page 35 Item Outline of specifications Remarks Frequency fixed <In case of wireless remote controller> operation (Test run) 1) Push [ON/OFF] button. 2) Using [SELECT] MODE button, set [COOL] or [HEAT] to the operation mode to drive the air conditioner. 3) Set [HIGH ] to the fan speed.
  • Page 36 Item Outline of specifications Remarks Power-saving 1) Power-saving opration is available in the AUTO mode. control 2) The set temperature is corrected using various sensor data within the range where comfort is maintained. 3) By using various sensor data including room temp. Ta, outside air temp.
  • Page 37 Item Outline of specifications Remarks Self-clean operation 1) When cooling operation mode (AUTO COOL, COOL, DRY) stopped, the following (Dry operation) three self-clean operations are performed. Compressor Self-clean Louver ON period operation period 0 to 10 min. None 10 to 60 min. 1 hour 450 rpm Position of 15°...
  • Page 38 Item Outline of specifications Remarks 8°C 1) This function is intended for the cold latitudes and performs objective heating operation 8°C heating operation). heating/ Frost protective 2) This function is valid only for combination with the outdoor units. In a group connection, operation if there is even one 3) Using the indoor CODE No.
  • Page 39 Item Outline of specifications Remarks COMFORT SLEEP When you push the COMFORT SLEEP button during • [ ] display operation cooling, heating or AUTO, the air conditioner will start the (Wireless remote following operation. controller specific The fan speed display will indicate AUTO and low speed will operations) be used.
  • Page 40 Item Outline of specifications Remarks PRESET operation Start the air conditioner in the operation mode which you want the • [ ] display (Wireless remote remote controller to memorize. controller specific 1) Push and hold the PRESET button for more than 3 seconds operations) while the display flashes.
  • Page 41 Item Outline of specifications Remarks Soft cooling * Wired remote controller : RBC-AMSU5∗ is required. 1) Sensation of draft can be suppressed by controlling performance and correcting the louver angle during cooling operation. 2) However, it may not cool well because the operation will be performed with the cooling capacity suppressed.
  • Page 42 Item Outline of specifications Remarks Communication 1) Communication type will be determined automatically by the • When performing combination of the indoor unit and the remote controller/ group control in type setting remote sensor. combination with a 2) However, this must be set to TCC-Link when connecting to a TCC-Link dedicated central control device exclusively for TCC-Link.
  • Page 43 Item Outline of specifications Remarks Rotation / DN [1C1] Data Rotation operation backup 0000 Unavailable (Factory default) operation (Continued) 0001 Available DN [1C2] Data Rotation interval 0001 1 day to 28days 0001: 1day (Factory default) 0028 DN [1C3] Data Rotation lap time 0000 0003: 30 minutes (Factory default) 0 to 70 minutes...
  • Page 44 Item Outline of specifications Remarks Power shift 1) This is control that, when air conditioners in different systems are installed in the same space controlled in a group, and the load within the space is imbalanced, lowers the used power within the whole group by limiting air conditioners having compressors that are operating at a highly inefficient frequency, and making up for insufficient performance by...
  • Page 45 Item Outline of specifications Remarks Free cooling 1) The external device can be operated in accordance with the outdoor temperature in cooling operations. Energy saving operations can be realized even if a cooling load exists in the winter, by combining a device that uses the outdoor temperature.
  • Page 46 Item Outline of specifications Remarks Secondary Secondary heating can be used while heating operations are performed. heating <Control Outline (Normal Mode)> 1) If the difference between the indoor temperature and the outdoor temperature is large while the air conditioner is operating, turn ON the secondary heating.
  • Page 47 Item Outline of specifications Remarks Secondary DN [C5] Data Secondary heating mode heating (Continued) 0000 Normal mode (Factory default) 0001 Flip mode DN [C6] Data : Set temp. out (high) [ºC] -0015 "-0015": -15ºC to "0015": 15ºC "0000": 0ºC (Factory default) 0015 DN [C7] Data...

  • Page 48: Indoor Print Circuit Board (High Wall Type)

    7-3. Indoor Print Circuit Board (High Wall Type) <MCC-1696> Operation Power LED D501 Option output Louver CN309, AC200-240V CN33, DC12V Inter-unit wire DC fan input / output CN67, AC200-240V CN210, DC310V Display output, Wireless Sensor CN213, DC5V Option output CN60, DC12V Fan drive CN32, DC12V CN61, DC12V...
  • Page 49 High Wall Type P.C. board optional switch/Connector specifications Connector Function Specifications Remarks Terminator resistor OFF: No terminator resistor, Setup at shipment OFF: No terminator resistor. Bit 1 provided/Not provided ON: Terminator resistor provided Only 1 unit is ON during central control by custom only. SW01 OFF: Remote controller A Remote controller A/B...

  • Page 50: Troubleshooting

    8. TROUBLESHOOTING 8-1. Summary of Troubleshooting <Wired remote controller type> 1. Before troubleshooting 1) Required tools/instruments – • screwdrivers, spanners, radio cutting pliers, nippers, push pins for reset switch • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal.
  • Page 51 <Wireless remote controller type> 1. Before troubleshooting 1) Required tools/instruments – • screwdrivers, spanners, radio cutting pliers, nippers, etc. • Tester, thermometer, pressure gauge, etc. 2) Confirmation points before check a) The following operations are normal. 1. Compressor does not operate. •...

  • Page 52: Troubleshooting

    8-2. Troubleshooting 8-2-1. Outline of judgment The primary judgment to check whether a trouble occurred in the indoor unit or outdoor unit is carried out with the following method. Method to judge the troubled position by flashing indication on the display part of the indoor unit (sensors of the receiving part) The indoor unit monitors the operating status of the air conditioner, and the blocked contents of self-diagnosis are displayed restricted to the following cases if a protective circuit works.
  • Page 53 Lamp indication Check code Cause of trouble occurrence Operation Timer Ready Heat exchanger sensor (TCJ) trouble Heat exchanger sensor (TC) trouble Indoor unit sensor trouble Alternate flash Room air temperature sensor (TA) trouble Discharge temp. sensor (TD) trouble Temp. sensor (TE) trouble Operation Timer Ready Temp.
  • Page 54 8-2-2. Others (Other than Check Code) Lamp indication Check code Cause of trouble occurrence Operation Timer Ready — During test run Simultaneous flash Operation Timer Ready Disagreement of cool/heat — (Automatic cool/heat setting to automatic cool/heat prohibited model, or setting of heating to cooling-only model) Alternate flash - 54 -...
  • Page 55 - 55 -...
  • Page 56 Trouble mode detected by indoor unit Operation of diagnostic function Judgment and measures Check Status of Cause of operation Condition code air conditioner 1. Check cables of remote controller and communication adapters. No communication from remote Displayed when Stop trouble is controller (including wireless) and •...
  • Page 57 Trouble mode detected by remote controller or central controller (Link adapter) Operation of diagnostic function Judgment and measures Status of Check code Cause of operation Condition air conditioner Power supply trouble of remote controller, Indoor EEPROM trouble 1. Check remote controller inter-unit wiring. No communication with header indoor unit 2.
  • Page 58 8-2-4. Diagnostic Procedure for Each Check Code (Indoor Unit) Check code [E01 trouble] Correct inter-unit cable Is inter-unit cable of A and B normal? of remote controller Is the connector on the harness or Correct connection of connector. the harness from terminal block of Check circuit wiring.
  • Page 59 [E04 trouble] Is group address setup of Does outdoor operate? Check CODE No. [14]. remote controller correct? Are wiring in indoor unit and Correct wiring and 1, 2, 3 inter-unit cables correct? inter-unit cables. Correct wiring of connector Are wirings of terminal blocks and terminal blocks.
  • Page 60 [E18 trouble] Correct inter-unit cable Is inter-unit cable of A and B normal? of remote controller. Is the connector on the harness or the Correct connection of connector. harness from terminal block of indoor unit Check circuit wiring. connected correctly? Is group control operation? Check power connection status of indoor unit...
  • Page 61 [L20 trouble] Are wiring connections to communication lines Correct wiring connection. Uh (U3, U4) normal? Replace central controller Is the multiple same central (including "1:1 model" connection interface) control system addresses connected? and indoor P.C. board (MCC-1696). Correct central control system address. [L30 trouble] Do outside devices normally work? Replace outside devices.
  • Page 62 [F10 trouble] Is connection of TA sensor connector Correct connection of connector. (CN104 on indoor P.C. board) correct? Are characteristics of Replace TA sensor. TA sensor resistance value normal? ∗ Refer to TA Characteristics. Replace indoor P.C. board (MCC-1696). - 62 -...
  • Page 63 [P12 error] Turn OFF the breaker. Turn it ON 10 seconds after. Does fan stop Is min. 1V DC present Replace with operation OFF? between CN210 pin + and – ? indoor unit fan motor. Start cooling Replace indoor unit with LOW fan speed.
  • Page 64 [P19 trouble] Is operation of 4-way valve normal? (Check the pipe temp., etc. Refer to the service manual of the outdoor unit. during cooling/heating operation. Replace outdoor temperature sensors. TE sensor TS sensor Indoor TC sensor [F02 trouble] Is connection of TC sensor connector Correct connection of connector.
  • Page 65 [C06 trouble] (“1:1 model” connection interface) Are Uh (U3, U4) communication lines normal? n i l Correct connection of connector. Is connection of connector normal? CN51 of “1:1 model” connection interface (TCC-LINK adapter) P.C. board (MCC-1440) and CN050 of indoor P.C. board Check connection of A and B terminal blocks.
  • Page 66 [E03 trouble] (Header indoor unit) [E03 trouble] is detected when the indoor unit cannot receive a signal from the remote controller (also central controller). Check A and B remote controllers and communication lines of the central control system Uh (U3, U4). As communication is impossible, this check code [E03] is not displayed on the remote controller and the central controller.
  • Page 67 Temperature sensor Temperature – Resistance value characteristic table TA, TC, TCJ, TE, TS, TO sensors TD, TL sensors Representative value Representative value Resistance value (kΩ Ω Ω Ω Ω ) Resistance value (kΩ Ω Ω Ω Ω ) Temperature Temperature (°C) (°C) (Minimum value) (Standard value) (Maximum value)

  • Page 68: Replacement Of Service P.c. Board

    9. REPLACEMENT OF SERVICE P.C. BOARD Indoor Unit CAUTION ∗∗∗ KRTP- ∗ <Model name: RAV-HM > For this model, please make all the following settings. CODE No.(DN) Setting data Description 0004 Global model <Note: when replacing the P.C. board for indoor unit servicing> The nonvolatile memory (hereafter called EEPROM, IC503) on the indoor unit P.C.
  • Page 69 [1] Setting data read out from EEPROM The setting data modified on the site, other than factory-set value, stored in the EEPROM shall be read out. ∗ ∗ ∗ ∗ ∗ <RBC-ASCU1 > (header unit No. when the group operation control) Step2 Step3 Step1...
  • Page 70 CODE No. required at least 1. The Code No. for the Indoor unit type and Indoor unit capacity are Contents required to set the rotation number setting of the fan. Type 2. If the system/indoor/group addresses are different from those Indoor unit capacity before replacement, the auto-address setting mode starts and the Line address...
  • Page 71 [2] P.C. Board for indoor unit servicing replacement procedures Step 1 Replace the P.C. board to the P.C. board for indoor unit servicing. At this time, perform the same setting of the jumper wire (J01, J08, J09) setting (cut), switch SW501, (short-circuit) connector CN34 as the setting of the P.C.
  • Page 72 [3] Writing the setting data to EEPROM ∗ ∗ ∗ ∗ ∗ <RBC-ASCU1 > The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. Step 1 Push and hold the [menu + ] buttons at same time for more than 10 seconds.
  • Page 73 <RBC-AMTU3∗ ∗ ∗ ∗ ∗ > The settings stored in the EEPROM of the P.C. board for indoor unit servicing are the factory-set values. Step 1 Push buttons on the remote controller simultaneously for more than 4 seconds. ∗ In the group control operation, the unit No. displayed for the first time is the header unit No.. At this time, the CODE No.
  • Page 74 Table 1. Type: CODE No. 10 Table 2. Indoor unit capacity: CODE No. 11 Setting data Type Type name abb. Setting data Type 4 Way Cassette Type 0001∗ RAV-HM∗∗∗UTP-∗ 0000∗ Disable High Wall Type 0008 RAV-HM∗∗∗KRTP-∗ 0009 CAUTION ∗ 0012 <Model name: RAV-HM***KRTP*>...

  • Page 75: Setup At Local Site And Others

    10. SETUP AT LOCAL SITE AND OTHERS 10-1. Indoor Unit 10-1-1. Test Run Setup on Remote Controller <RBC-ASCU1∗ ∗ ∗ ∗ ∗ > Be sure to stop the air conditioner before making settings. (Change the setup while the air conditioner is not working.) Push and hold OFF timer button and [ ] setting button simultaneously for 10 seconds or more.
  • Page 76 <RBC-AMTU3∗ ∗ ∗ ∗ ∗ > 1. When pushing button on the remote controller for 4 seconds or more, “TEST” is displayed on LC display. Then push button. • “TEST” is displayed on LC display during operation of Test Run. •...
  • Page 77 <Overview of test run operations using the wireless remote controller> Cooling test run: ON/OFF → 18 °C → 17 °C → 18 °C → 17 °C → 18 °C → 17 °C → 18 °C → (test run) → ON/OFF Heating test run: ON/OFF →...
  • Page 78 10-1-4. Function Selection Setup <Procedure> Perform setting while the air conditioner stops. <RBC-ASCU1∗ ∗ ∗ ∗ ∗ > 2,4,5 Push and hold menu button and [ ] setting button simultaneously for 10 seconds or more. • After a while, the display flashes as shown in the figure. “ALL” is displayed as indoor unit numbers during initial communication immediately after the power has been turned on.
  • Page 79 <RBC-AMTU3∗ ∗ ∗ ∗ ∗ > Push the buttons simultaneously and hold for at least 4 seconds. CODE No. The unit No. displayed first is the address of the header indoor unit in group SET DATA 00 01 SETTING TEST UNIT No.
  • Page 80 Function CODE No. (DN Code) table (includes all functions needed to perform applied control on site) Item Description At shipment Filter display delay timer 0000: None 0001: 150H 0002 : 2500H 0002: 2500H 0003: 5000H 0004: 10000H Dirty state of filter 0000: Standard 0000: Standard 0001: High degree of dirt (Half of standard time)
  • Page 81 Item Description At shipment Dual set point 0000: Unavailable 0002: Available 0000: Unavailable Thermostat OFF fan 0000: Remoto controller setting 0001: Extremely low speed (UL) 0001: Extremely low speedin cooling mode 0002: Fan OFF 0003: Low speed (L) speed (UL) Soft cooling 0000: Unavailable 0001: Available...
  • Page 82 For Central control address (DN [03]), Indoor unit address (DN [13]) Remote controller Communication type Display order · · ·· ⇔ 0128 ⇔ 00Un ⇔ 0001 ⇔ ··· TU2C-LINK U series · · ·· ⇔ 0064 ⇔ 00Un ⇔ 0001 ⇔ ··· TCC-LINK ·...
  • Page 83 10-1-5. Wiring and Setting of Remote Controller Control 2-remote controller control (Controlled by 2 remote controllers) This control is to operate 1 or multiple indoor units are operated by 2 remote controllers. (Max. 2 remote controllers are connectable.) • When connected 2 remote controllers •...
  • Page 84 <Wireless remote controller> Wireless remote controller A-B selection Using 2 wireless remote controllers for the respective air conditioners, when the 2 air conditioners are closely installed. Address (A-B selection) must be changed on both signal receiving unit and wireless remote controller. Wireless remote controller B setup 1.
  • Page 85 10-1-6. Monitor Function of Remote Controller Switch Calling of sensor temperature display <Contents> Each data of the remote controller, indoor unit and outdoor unit can be understood by calling the service monitor mode from the remote controller. <Procedure> <RBC-ASCU1∗ ∗ ∗ ∗ ∗ > Push the [menu] button for over 10 seconds.
  • Page 86 CODE No. Data name Unit CODE No. Data name Unit Room temperature Outdoor heat exchanger (Coil) temperature (TE) °C °C (Remote controller) Outside temperature (TO) °C Indoor suction temperature (TA) °C Compressor discharge temperature (TD) °C Indoor heat exchanger (Coil) Compressor suction temperature (TS) °C °C...
  • Page 87 Calling of trouble history <Contents> The trouble contents in the past can be called. <Procedure> ∗ ∗ ∗ ∗ ∗ <RBC-ASCU1 > (1) Confirmation and check If a problem occurs with the air conditioner, the OFF timer indicator alternately shows the check code and the indoor Unit No.
  • Page 88 <RBC-AMTU3∗ ∗ ∗ ∗ ∗ > Push buttons simultaneously for 4 seconds or more to call the service check mode. 01 01 01 01 01 Service Check goes on, the CODE No. is displayed, and then the content of the latest alarm is displayed. The number and trouble contents of the indoor unit in which an TEMP.
  • Page 89 Indoor unit power-ON sequence • The unit without power feed waits entirely → Waiting status is released by system start Power ON • Reboot when power is fed on the way <By indoor unit which receives power feed from outdoor unit> <Automatic address judgment>...
  • Page 90 10-2. Setup at Local Site / Others Model name: TCB-PCNT30TLE2 10-2-1. 1:1 Model Connection Interface (TCC-LINK adapter) 1. Function This model is an optional P.C. board to connect the indoor unit to 1:1 model connection interface. (Communication protocol:TU2C-Link or TCC-Link) 2.
  • Page 91 4. Wiring Specifications • Use 2-core with no polar wire. No. of wires Size • Match the length of wire to wire length of the central control Up to 1000m: twisted wire 1.25mm system. If mixed in the SMMS system, the wire length is Up to 2000m: twisted wire 2.0mm lengthened with all indoor/outdoor inter-unit wire length at side.
  • Page 92 6. External view of P.C. board assembly Terminator (SW01) 7. Address setup In addition to set up the central control address, it is necessary to change the indoor unit number. (Line/Indoor/Group address). For details, refer to 1:1 model connection interface Installation Manual. 10-3.

  • Page 93: Address Setup

    11. ADDRESS SETUP 11-1. Address Setup <Address setup procedure> When an outdoor unit and an indoor unit are connected and they are twin or when an outdoor unit is connected to each indoor unit respectively in the group operation even if multiple refrigerant lines are provided, the automatic address setup completes with power-ON of the outdoor unit.

  • Page 94: Address Setup & Group Control

    11-2. Address Setup & Group Control <Terminology> Indoor unit No. : N – n = Outdoor unit line address N – Indoor unit address n Group address : 0 = Single (Not group control) 1 = Header unit in group control 2 = Follower unit in group control Header unit (= 1) : The representative of multiple indoor units in group operation sends/receives signals to/...
  • Page 95 3. Single group operation • Each indoor unit controls the outdoor unit individually. Header/Sub Header/Sub Header/Master Header/Sub Header/Sub 4. Multiple groups operation (Manual address setting) Header/Sub Header/Sub Follower/Sub Header/Master Follower/Sub • Master unit: The master unit receives the indoor unit data (thermostat status) of the sub (Without identical line address &...
  • Page 96 11-2-2. Automatic Address Example from Unset Address (No miswiring) 1. Standard (One outdoor unit) (1-1) (1-2) Individual Header/Master Follower/Sub (Header/Master) Only turning on source power supply (Automatic completion) 2. Group operation (Multiple outdoor units = Multiple indoor units with serial communication only, without twin) Header/Sub Header/Sub Header/Master...

  • Page 97: Address Setup (Manual Setting From Remote Controller)

    11-3. Address Setup (Manual Setting from Remote Controller) In case that addresses of the indoor units will be determined prior to piping work after wiring work • Set an indoor unit per a remote controller. (Example of 2-lines wiring) • Turn on power supply. (Solid line: Wiring, Broken line: Refrigerant pipe) Outdoor Outdoor...
  • Page 98 <Indoor unit address> Push the [menu] button until the CODE No. flashes. And using the [ ] buttons, specify the CODE No.13. Push the [menu] button until the SET DATA flashes. And using the [ ] buttons, set an indoor unit address. Push the [OFF timer] button to confirm the SET DATA.
  • Page 99 MAINTENANCE / CHECK LIST Aiming in environmental preservation, it is strictly recommended to clean and maintain the indoor/outdoor units of the operating air conditioning system regularly to secure effective operation of the air conditioner. It is also recommended to maintain the units once a year regularly when operating the air conditioner for a long time.

  • Page 100: How To Replace The Main Parts

    12. HOW TO REPLACE THE MAIN PARTS WARNING • Since high voltages pass through the electrical parts, turn off the power without fail before proceeding with the repairs. Electric shocks may occur if the power plug is not disconnected. • After the repairs have been completed (after the front panel and cabinet have been installed), perform a test run, and check for smoking, unusual sounds and other abnormalities.
  • Page 101 Part name Procedures Remarks Air filters 1) Follow to the procedure in the item 1 . Air filters 2) Remove the left and the right air filters from the front panel. Front panel 1) Stop operation of the air conditioner and turn Front panel off its main power supply.
  • Page 102 Procedures Part name Remarks Electric part 1) Follow the procedure item 3 . box assembly 2) Remove screw holding the electric part cover. 3) Take off the clamp base mounting screw and then remove the clamp base assembly. 4) Take off fixing screws (2 pcs) of PMV cover, and then remove PMV cover.
  • Page 103 Part name Procedures Remarks Fan motor 1) Follow the procedure item 3 and 4 . Cross flow fan 2) Loosen the set screw of the cross flow fan. Cross flow fan Body back 3.5 mm Set screw Fan motor Vertical louver Hexagon screw driver 3) Remove 2 fixing screws of the motor band.
  • Page 104 Part name Procedures Remarks Drain pan 1) Follow the procedure item assembly 2) Remove screw holding the electric part cover. 3) Disconnect the louver motor connector (5P) from P.C. board assembly. 4) Disconnect the cord motor of Louver VT (5P) from the Louver VT (L/R) connector.
  • Page 105 Part name Procedures Remarks Vertical louver 1) Follow the procedure item 3 and 8 . Vertical louver assembly 2) Remove 2 fixing screws from the base Screw vertical louver then remove the vertical louver assembly from the body back. Screw Cover motor VT 1) Follow the procedure item 3 , 8 and 9 .
  • Page 106 Part name Procedures Remarks Cross flow fan Body back 3.5 mm Fan motor Set screw - Holding the set screw, install the cross flow fan so that flat area on shaft of the fan motor comes to the mounting hole of the set screw.
  • Page 107 Microcomputer Part name Procedure Remarks Common procedure 1) Turn the power supply off to stop the Replace terminal block,  operation of air-conditioner. microcomputer ass’y and the P .C. board ass’y. 2) Remove the front panel. • Remove the 2 fixing screws. 3) Remove the electrical part base.

  • Page 108: Exploded Views And Parts List

    For orders of the service parts for High Wall type air conditioners, please check the service parts on Web site of [TOSHIBA CARRIER THAILAND CO., Ltd.], and then place an order for parts to (TOSHIBA CARRIER THAILAND CO., Ltd.). Location...
  • Page 109 For orders of the service parts for High Wall type air conditioners, please check the service parts on Web site of [TOSHIBA CARRIER THAILAND CO., Ltd.], and then place an order for parts to (TOSHIBA CARRIER THAILAND CO., Ltd.). Location...
  • Page 110 WARNINGS ON REFRIGERANT LEAKAGE Important Check of Concentration Limit The room in which the air conditioner is to be installed requires a design that in the event of NOTE 2 : refrigerant gas leaking out, its concentration will The standards for minimum room volume are as follows. not exceed a set limit.
  • Page 111 144/9 MOO 5, BANGKADI INDUSTRIAL PARK, TIVANON ROAD, TAMBOL BANGKADI, AMPHUR MUANG, PATHUMTHANI 12000, THAILAND.

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